Oil burner



June 22 1926@ J. A. KENWORTHY OIL BURNER Filed Sept. 15, 1924 zgr ra WNWWWWWW Patented June 22, 1926.

JAMES A. KENWORTI-IY, OF LOS ANGELES, CALIFORNIA.

OIL BURNER.

Application filed September 15, 1924. Serial No. 737,742.

My invention relates to oil burners and is particularly adapted for the spraying of fuel oil in the fire box of furnaces and completely atomizing the same, in order to form a perfect combustion of the fuel oil as well as to equally distribute the same to produce a uniform flame in the fire box.

The object of my invention is to provide a burner of the character above'mentioned which will be simple and cheap of manufacture and whereby the fuel oil will be ejected through the nozzle of the burner by a forced draft of air or steam in intimately mixed relation therewith.

A further object of my invention is to pro vide a burner which will serve to mix the air and oil together in incremen s and then mix the resulting increments ogether before being discharged through the burner nozzle, thus assuring a thorough atomization of the fuel oil and an even distribution and perfect combustion of the same.

The above mentioned and other objects of my invention will be more fully disclosed in the following description and will be em bodied in the accompanying drawings, in which:

Fig. 1 is a plan section through my burner showing suitable pipe connections associated therewith.

Fig. 2 is a front view of the same.

Fig. 3 is a transverse section takenon line 2-2 of Fig. 1.

Fig. 4 is a transverse section taken on the line 33 of Fig. 1.

In carrying out my invention I provide a body member 10 which is preferably cylindrical in form and exteriorly threaded in the discharge ends at 11 and 12. A bore is formed in the discharge end of the member 10 to form a mixing chamber 13, and a bore 14 of smaller diameter than the chamber 13' is formed in the intake end of said member and is threaded to receive the fuel oil supply pipe 15.

A partition wall 16 is formed between the mixing chamber and the bore 14 and a plurality of radially disposed passages 17 are formed in said wall extending on an incline from the intake end toward the diametrical center of member 10 to the discharge end thereof, and terminates adjacent the peripheral wall of said mixing chamber, and are adapted to open communication between the mixing chamber 16 and the air or steam pipe 18 which is threaded to said member 10.

A plurality of radially disposed passages 19, one for each of the passages 17, are formed in the wall 16 and preferably join with the passages 17 in the mixing chamber 13 and extend on an incline from said juncture toward the intake end and the diametrical center of member 10 and open communication between the bore 14 and fuel oil sup ply pipe 15, and the mixing chamber 13.

Threaded at 11 to the front of member 10 is a burner tip or nozzle 20 which isprovided with the outlet slot 21 adapted to direct the atomized fuel in the fan like manner into the fire box of the furnace.

In the operation of the burner, the fuel oil is admitted into the pipe 15 and the air or steam under pressure is admitted into the pipe 18, the air or steam passing through the passages 17 and the fuel oil through the passages 19 and co-iningling and becoming mixed at the juncture of these passages; and the mixed increments of the air or steam and fuel oil from each pair of passages are injected into chamber 13, thus co -mingling into a thoroughly atomized vapor which passes through the slots 21 of the burner nozzle 20 and when ignited produces a flame of intense heat.

Although I have shown and described the fuel oil as passing through the pipe 15 and passages 19 and the air or steam passing through the pipe 18 and passages 17, which has a distinct advantage, it will be obvious that this order may be reversed to accomplish substantially the same results, and moreover, the size and shape of the mixing chamber may be varied without detracting from the spirit of my invention, the essential feature of my invention being to first mix a plurality of small quantities of the fuel oil and air or steam together in units, and to then mix these units into a whole.

By forming the air or steam passages 17 to incline toward the diametrical center of the mixing chamber and discharge nozzle it will be obvious that the various streams of the atomized fuel oil will be caused to impact with one another, thus tending to more completely break up and atomize the oil before it is discharged through the nozzle open- What I claim is:

1. An oil burner, comprising a body portion provided with a mixing chamber at its discharge end and a pair of concentrically arranged pipes at its intake end, said body eesses the metal between said recesses being provided with. a group of circularly arranged oil delivery bores connecting said recesses, said body portion at the intake end having a group of circularly arranged steam delivery bores formed therein extending "from the intake end of the body and ter1ni eating in the recess at the discharge end, the said oil and steam bores being arranged in paire the discharge ends of each pair of said bores joining.

In witness that 1 claim the foregoing I have herein'ito subscribed my name this (3th day of September, 1924:.

JAMES A. KENT VORlI-IY. 

